Results 1 to 10 of about 86,204 (314)

Bias-correcting carbon fluxes derived from land-surface satellite data for retrospective and near-real-time assimilation systems [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
The ability to monitor and understand natural and anthropogenic variability in atmospheric carbon dioxide (CO2) is a growing need of many stakeholders across the world.
B. Weir   +10 more
doaj   +1 more source

NASA Satellite Measurements Show Global‐Scale Reductions in Free Tropospheric Ozone in 2020 and Again in 2021 During COVID‐19

open access: yesGeophysical Research Letters, 2022
NASA satellite measurements show that ozone reductions throughout the Northern Hemisphere (NH) free troposphere reported for spring‐summer 2020 during the COronaVIrus Disease 2019 pandemic have occurred again in spring‐summer 2021.
Jerry R. Ziemke   +9 more
doaj   +1 more source

Description of the NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0

open access: yesJournal of Advances in Modeling Earth Systems, 2021
The Goddard Earth Observing System composition forecast (GEOS‐CF) system is a high‐resolution (0.25°) global constituent prediction system from NASA's Global Modeling and Assimilation Office (GMAO).
Christoph A. Keller   +15 more
doaj   +1 more source

AERONET-based models of smoke-dominated aerosol near source regions and transported over oceans, and implications for satellite retrievals of aerosol optical depth [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Smoke aerosols from biomass burning are an important component of the global aerosol system. Analysis of Aerosol Robotic Network (AERONET) retrievals of aerosol microphysical/optical parameters at 10 sites reveals variety between biomass burning aerosols
A. M. Sayer   +4 more
doaj   +1 more source

The description and validation of the computationally Efficient CH4–CO–OH (ECCOHv1.01) chemistry module for 3-D model applications [PDF]

open access: yesGeoscientific Model Development, 2016
We present the Efficient CH4–CO–OH (ECCOH) chemistry module that allows for the simulation of the methane, carbon monoxide, and hydroxyl radical (CH4–CO–OH) system, within a chemistry climate model, carbon cycle model, or Earth system model.
Y. F. Elshorbany   +4 more
doaj   +1 more source

A cloud-ozone data product from Aura OMI and MLS satellite measurements [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
Ozone within deep convective clouds is controlled by several factors involving photochemical reactions and transport. Gas-phase photochemical reactions and heterogeneous surface chemical reactions involving ice, water particles, and aerosols inside ...
J. R. Ziemke   +15 more
doaj   +1 more source

Compact Thermal Imager (CTI) for Atmospheric Remote Sensing

open access: yesRemote Sensing, 2021
The demonstration of a newly developed compact thermal imager (CTI) on the International Space Station (ISS) has provided not only a technology advancement but a rich high-resolution dataset on global clouds, atmospheric and land emissions.
Dong L. Wu   +14 more
doaj   +1 more source

Heliocentric Distance and Solar Activity Dependence of Sustained Quasi-radial Interplanetary Magnetic Field Occurrence

open access: yesThe Astrophysical Journal, 2023
Planets close to their stars experience an interplanetary magnetic field (IMF) that is dominantly quasi-radial. Our solar system serves as a laboratory to study how the occurrence of quasi-radial IMF varies away from the star and under different stellar ...
Brandon L. Burkholder   +7 more
doaj   +1 more source

Rocket Measurements of Electron Energy Spectra From Earth's Photoelectron Production Layer

open access: yesGeophysical Research Letters, 2022
Photoelectrons are crucial to atmospheric physics. They heat the atmosphere, strengthen planetary ambipolar electric fields, and enhance the outflow of ions to space.
Glyn A. Collinson   +19 more
doaj   +1 more source

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